CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS

Classification Context

Section:

PERFORMING OPERATIONS; TRANSPORTING

Class:

PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL

Subclass:

CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS

Scope Notes

Glossary: catalyst catalysts any substance that increases the rate of a reaction without itself being consumed. Catalysts are commonly used in their pure form or in combination with suitable carriers. chromatography a process in which a fluid is caused to flow along a linear path comprising a sorbent, with which the fluid competes in affinity for a constituent of the fluid. The constituent is sorbed from the moving fluid by the relatively immobile sorbent and re-dissolved by a later passing portion of the fluid until an equilibrium of the sorbing-dissolving step is set up causing the constituent to concentrate in a specific volume of the sorbent and to move along the path of the fluid at a rate slower than such fluid. fluidised particles fluidised particle finely divided solid particles lifted and agitated by a stream of fluid fluidised-bed fluidised beds fluidised-solid contacting technique in which finely divided particles are lifted and agitated by a rising stream of fluid molecular sieve molecular sieves materials (e.g. zeolitic or mesoporous) having cavities and channels which by their size allow some molecules to pass through, but prevent others solid particles solid particle particles whether catalysts, reactants or inert in solid, semi-solid or pasty state sorbent sorbents a material which separates a constituent from a fluid mixture containing such constituents. The action in most instances is that of selective retention (i.e. the sorbent removes only the part of the fluid mixture for which it has the greatest affinity). zeolites zeolite (i) crystalline aluminosilicates with base-exchange and molecular sieve properties, having three-dimensional [3D], microporous lattice framework structure of tetrahedral oxide units; (ii) compounds isomorphous to those of the former category, wherein the aluminium or silicon atoms in the framework are partly or wholly replaced by atoms of other elements, e.g. gallium, germanium, phosphorus or boron. | Limiting references: Separation also combined with chemical reactions Generating specific gases , Catalysts used only in polymerisation reactions Pressure vessels for containing or storing compressed, liquefied or solidified gases | Application references: Treatment of milk General methods or apparatus for disinfection or sterilising of materials Use of solid sorbent compositions in liquid separation, e.g. ion-exchange adsorbents , Ion-exchange chromatography processes, , Use of filter aid compositions Auxiliary pretreatment of gases or vapours by ultrasound Separation of gases or vapours Use of sorbent compositions in gas separation , Separation of isotopes Electrodialysis, electro-osmosis Cleaning involving contact with liquid by sonic or ultrasonic vibrations Apparatus for compacting or sintering metal powders Granulating metals Making granules from plastics or from substances in a plastic state Active carbon Treatment of water by ion-exchange Packings, fillings or grids for biological treatment of water, waste water or sewage Processes for granulating fertilisers characterised by their chemical composition Granulating molten slag Chemical aspects of granulating macromolecular substances Use of substances as emulsifying, wetting, dispersing or foam producing agents Refining of hydrocarbon oils, in the absence of hydrogen, with solid sorbents Purification of sugar using ion-exchange materials Extraction of sugar from molasses using ion exchange Granulating ores or scrap Extraction of metal compounds from ores or concentrates by wet processes, e.g. adsorption or ion-exchange Physical treatment of fibres, threads, yarns or fabrics Pressure vessels in general Combustion apparatus in which combustion takes place in a fluidised bed of fuel or other particles Drying solid materials to form a fluidised bed Furnace, conducted in the presence of fluids and solid particles Rotary drum furnaces Blasting cartridges for producing gas under pressure Splashing boards or grids specially adapted for trickle coolers Using ion-exchange for investigating or analysing materials Pressure vessels for nuclear reactors Treating radioactively contaminated material

Related Keywords

Child Classifications

Navigate with arrow keys, Enter to open

• B01J 10/00 Chemical processes in general for reacting liquid with gaseous media other than in the presence of solid particles; Apparatus specially adapted therefor
• B01J 12/00 Chemical processes in general for reacting gaseous media with gaseous media; Apparatus specially adapted therefor
• B01J 13/00 Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided for; Making microcapsules or microballoons
• B01J 14/00 Chemical processes in general for reacting liquids with liquids; Apparatus specially adapted therefor
• B01J 15/00 Chemical processes in general for reacting gaseous media with non-particulate solids, e.g. sheet material; Apparatus specially adapted therefor
• B01J 16/00 Chemical processes in general for reacting liquids with non-particulate solids, e.g. sheet material; Apparatus specially adapted therefor
• B01J 19/00 Chemical, physical or physico-chemical processes in general; Their relevant apparatus
• B01J 2/00 Processes or devices for granulating materials, in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
• B01J 20/00 Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
• B01J 21/00 Catalysts comprising the elements, oxides or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium or hafnium
• B01J 23/00 Catalysts comprising metals or metal oxides or hydroxides, not provided for in group
• B01J 25/00 Catalysts of the Raney type
• B01J 27/00 Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
• B01J 29/00 Catalysts comprising molecular sieves
• B01J 3/00 Processes of utilising sub-atmospheric or super-atmospheric pressure to effect chemical or physical change of matter; Apparatus therefor
• B01J 31/00 Catalysts comprising hydrides, coordination complexes or organic compounds
• B01J 32/00 Catalyst carriers in general
• B01J 33/00 Protection of catalysts, e.g. by coating
• B01J 35/00 Catalysts, in general, characterised by their form or physical properties
• B01J 37/00 Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
• Show 11 more